And your stool is still watery?
現在還在拉肚子嗎？

Stool
大便，糞便

Stool is the medical term for poop.
Stool是大便的醫學用語。

There are many terms for poop: "stool", "poo", "poop", and "shit". are the most common.
還有其他詞可以表示大便?！皊tool” "poo" "poop"和"shit"都很常見。

Stool: you will most likely hear the term "stool" being used by your doctor, so you should really only use use the term "stool" when you talk with your doctor or in a professional setting.
Stool一詞更有可能聽醫生說，所以專業場合中和醫生交流時也只用“Stool”一詞。

I guess you can say it is the "formal" word for poop.
也可以說stool是poop更正式的說法。

Poop and poo are basically the same, but "poop" is more common. Use it at home or with friends because it is a bit less formal than "stool".
Poop和Poo基本是一個意思，但Poop更常用。在家或和朋友一起使用，會比stool更日常。

Shit also means poop. This is an informal word for poop that should not be used in a setting like at work or school talking with higher-ups.

Shit也是Poop的意思。是poop更不正式的說法，在學校或者工作場合里與上司長輩講話時不應使用。

I can't believe he shit his pants!
簡直不敢相信他拉褲子了。

Shit can also be used as an exclamation of anger.
Shit也可以表達生氣時的語氣詞。

Shit! I left my keys in the car!
**！我把鑰匙落在車里了！

It would be okay if you use the word "shit" with close friends for these kinds of situations.
在這種場景下和近親的朋友用這個詞也沒有問題。